<template>
  <div class="login-container">
    <div class="world" ref="world" v-cloak></div>
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <div class="title-container" v-pre>
        <h3 class="title">管理员登录</h3>
      </div>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"

          :trigger-on-focus="false"
        />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      <el-button :loading="loading" type="info" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">Login</el-button>
    </el-form>
  </div>
</template>

<script>
import * as echarts from "echarts";
import 'echarts-gl'
const worl = require('@/utils/map/world.json')

export default {
  name: 'Login',
  data() {
    return {
      // 表单数据
      loginForm: {
        username: '',
        password: ''
      },
      // 表单校验规则
      loginRules: {
        username: [{ required: true, trigger: 'blur', message:'账号不可以为空' }],
        password: [{ required: true, trigger: 'blur', message:'密码不可以为空' }]
      },
      loading: false,
      passwordType: 'password', // 输入框类型
      redirect: undefined,
      chinachart: null // 3d地球
    }
  },
  watch: {
    $route: {
      handler(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    // 展示密码
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    // 用户点击按钮登录
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          // 派发actions提交用户登录信息
          this.$store.dispatch('user/login', this.loginForm).then(res=>{
            this.$router.push({path:'/'})
            this.loading = false // 取消按钮加载中
          }).catch(e=>{
            this.$message.error('提交失败')
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          this.loading = false
          return false
        }
      })
    },
    // 配置3d地球
    setWorld() {
      this.chinachart = echarts.init(this.$refs.world)
      function getAirportCoord (idx) {
        return [worl.airports[idx][3], worl.airports[idx][4]]
      }
      var routes = worl.routes.map(function (airline) {
        return [
          getAirportCoord(airline[1]),
          getAirportCoord(airline[2])
        ]
      })
      const option = {
        backgroundColor: 'translate',
        globe: {
          width: 500,
          height: 500,
          top:'100',
          left:'50',
          // 需要引入的两张图片
          baseTexture: 'img/world.topo.bathy.200401.jpg',
          heightTexture: 'img/bathymetry_bw_composite_4k.jpg',
          shading: 'lambert',
          light: {
            ambient: {
              intensity: 0.8,
              color: '#fff'
            },
            main: {
              intensity: 0.3
            }
          },
          viewControl: {
            autoRotate: true
          }
        },
        series: {
          type: 'lines3D',
          coordinateSystem: 'globe',
          blendMode: 'lighter',
          lineStyle: {
            width: 1,
            color: 'rgb(79,124,238)',
            opacity: 0.1
          },
          data: routes
        }
      }
      this.chinachart.setOption(option)
    }
    },
    mounted() {
      this.$nextTick(()=>{
        this.setWorld()
      })
    }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #010124;
$dark_gray:#889aa4;
$light_gray:#eee;
[v-cloak] {
  display: none;
}

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  //background: url("./images/xingkong3.jpeg") no-repeat;
  //background-size: cover;
  overflow: hidden;
  .world {
    position: absolute;
    height: 620px;
    width: 620px;
    top: 10%;
    left: 10%;
    z-index: 999;
  }
  .login-form {
    position: absolute;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    top:30%;
    left: 80%;
    transform: translate(-50%,-50%);
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
